Do you let your guy cum inside you?

So this is a little weird even typing this out but here we go! I have a friend that tells me she loves it when her boyfriend cums in her. Me personally, I just do not see the appeal of getting chummed inside of. Perhaps this is because I have zero desire to have a child. Also, I have a medical issue that gives me a minimal chance of ever having a child.

I am more curious to your responses and that is why I am asking here.

So I pose the question. What is going through your head when you say to your guy, "cum in me!"? Even if your on birth control. Which my friend is on by the way.